Electrocatalytic hydrodeoxygenation of 5-hydroxymethylfurfural to 2,5-dimethylfuran over POx modified Cu electrocatalysts: the promoting role of POx

IF 9.2 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Green Chemistry Pub Date : 2025-08-14 DOI:10.1039/D5GC02693H
Yiwei Zhao, Chao Zhang, Zuhang Jin, Cheng Tao and Tingting Xiao
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引用次数: 0

Abstract

Conversion of 5-hydroxymethylfurfural (HMF) to 2,5-dimethylfuran (DMF) by electrocatalysis is significant but challenging. A Cu–POx catalyst (CuP-CF-350-H), synthesized by simple electrodeposition, shows high efficiency for C–O cleavage by suppressing the side reaction of aldehyde hydrogenation, and achieves 63.1% DMF selectivity at 92.0% HMF conversion. The synergistic presence of electron-deficient Cu sites and POx species provides a large number of active sites for proton stabilization and HMF adsorption, as well as the acidic sites for C–O cleavage. In addition, the oxygen-deficient POx species in the catalyst promotes the spillover of Hads (H*) from Cu sites to POx, reduces the surface H* coverage, and provides a sufficient number of protons for hydrodeoxygenation.

Abstract Image

在POx修饰的Cu电催化剂上电催化5-羟甲基糠醛加氢脱氧制2,5-二甲基呋喃:POx的促进作用
5-羟甲基糠醛(HMF)电催化转化为2,5-二甲基呋喃(DMF)具有重要意义,但具有挑战性。采用简单电沉积法合成Cu-POx催化剂CuP-CF-350-H,抑制醛加氢副反应,对C-O的裂解效率高,对DMF的选择性为63.1%,对HMF的转化率为92.0%。缺乏电子的Cu位点和POx物种的协同存在为质子稳定和HMF吸附提供了大量的活性位点,以及为C-O裂解提供了酸性位点。此外,催化剂中缺乏氧的POx促进了Hads (H*)从Cu位点向POx的溢出,降低了表面H*的覆盖率,并为氢脱氧提供了足够数量的质子。
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来源期刊
Green Chemistry
Green Chemistry 化学-化学综合
CiteScore
16.10
自引率
7.10%
发文量
677
审稿时长
1.4 months
期刊介绍: Green Chemistry is a journal that provides a unique forum for the publication of innovative research on the development of alternative green and sustainable technologies. The scope of Green Chemistry is based on the definition proposed by Anastas and Warner (Green Chemistry: Theory and Practice, P T Anastas and J C Warner, Oxford University Press, Oxford, 1998), which defines green chemistry as the utilisation of a set of principles that reduces or eliminates the use or generation of hazardous substances in the design, manufacture and application of chemical products. Green Chemistry aims to reduce the environmental impact of the chemical enterprise by developing a technology base that is inherently non-toxic to living things and the environment. The journal welcomes submissions on all aspects of research relating to this endeavor and publishes original and significant cutting-edge research that is likely to be of wide general appeal. For a work to be published, it must present a significant advance in green chemistry, including a comparison with existing methods and a demonstration of advantages over those methods.
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